return MTU in results

Signed-off-by: Sebastian Sch <sebassch@gmail.com>

cmd/sriov/main.go

@@ -121,6 +121,10 @@ func cmdAdd(args *skel.CmdArgs) error {
 	}
 
 	result.Interfaces[0].Mac = config.GetMacAddressForResult(netConf)
+	// check if we are able to find MTU for the virtual function
+	if netConf.MTU != nil {
+		result.Interfaces[0].Mtu = *netConf.MTU
+	}
 
 	// run the IPAM plugin
 	if netConf.IPAM.Type != "" {
@@ -304,5 +308,10 @@ func cmdCheck(_ *skel.CmdArgs) error {
 }
 
 func main() {
-	skel.PluginMain(cmdAdd, cmdCheck, cmdDel, version.All, "")
+	cniFuncs := skel.CNIFuncs{
+		Add:   cmdAdd,
+		Del:   cmdDel,
+		Check: cmdCheck,
+	}
+	skel.PluginMainFuncs(cniFuncs, version.All, "")
 }

go.mod

@@ -3,30 +3,30 @@ module github.com/k8snetworkplumbingwg/sriov-cni
 go 1.21
 
 require (
-	github.com/containernetworking/cni v1.1.2
-	github.com/containernetworking/plugins v1.2.0
+	github.com/containernetworking/cni v1.2.0-rc0.0.20240317203738-a448e71e9867
+	github.com/containernetworking/plugins v1.4.2-0.20240312120516-c860b78de419
 	github.com/k8snetworkplumbingwg/cni-log v0.0.0-20230801160229-b6e062c9e0f2
-	github.com/onsi/ginkgo/v2 v2.9.2
-	github.com/onsi/gomega v1.27.5
-	github.com/stretchr/testify v1.6.1
+	github.com/onsi/ginkgo/v2 v2.16.0
+	github.com/onsi/gomega v1.31.1
+	github.com/stretchr/testify v1.8.2
 	github.com/vishvananda/netlink v1.2.1-beta.2.0.20240221172127-ec7bcb248e94
-	golang.org/x/net v0.17.0
+	golang.org/x/net v0.20.0
 )
 
 require (
-	github.com/coreos/go-iptables v0.6.0 // indirect
+	github.com/coreos/go-iptables v0.7.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
 	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
-	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/pprof v0.0.0-20230323073829-e72429f035bd // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/safchain/ethtool v0.2.0 // indirect
-	github.com/stretchr/objx v0.1.0 // indirect
+	github.com/safchain/ethtool v0.3.0 // indirect
+	github.com/stretchr/objx v0.5.0 // indirect
 	github.com/vishvananda/netns v0.0.4 // indirect
-	golang.org/x/sys v0.13.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
-	golang.org/x/tools v0.7.0 // indirect
+	golang.org/x/sys v0.17.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/tools v0.17.0 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

go.sum

@@ -1,114 +1,65 @@
 github.com/BurntSushi/toml v1.1.0 h1:ksErzDEI1khOiGPgpwuI7x2ebx/uXQNw7xJpn9Eq1+I=
 github.com/BurntSushi/toml v1.1.0/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
-github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
-github.com/containernetworking/cni v1.1.2 h1:wtRGZVv7olUHMOqouPpn3cXJWpJgM6+EUl31EQbXALQ=
-github.com/containernetworking/cni v1.1.2/go.mod h1:sDpYKmGVENF3s6uvMvGgldDWeG8dMxakj/u+i9ht9vw=
-github.com/containernetworking/plugins v1.2.0 h1:SWgg3dQG1yzUo4d9iD8cwSVh1VqI+bP7mkPDoSfP9VU=
-github.com/containernetworking/plugins v1.2.0/go.mod h1:/VjX4uHecW5vVimFa1wkG4s+r/s9qIfPdqlLF4TW8c4=
-github.com/coreos/go-iptables v0.6.0 h1:is9qnZMPYjLd8LYqmm/qlE+wwEgJIkTYdhV3rfZo4jk=
-github.com/coreos/go-iptables v0.6.0/go.mod h1:Qe8Bv2Xik5FyTXwgIbLAnv2sWSBmvWdFETJConOQ//Q=
+github.com/containernetworking/cni v1.2.0-rc0.0.20240317203738-a448e71e9867 h1:DQ9iOvlXFOn+sJfbdvXyGISf/4xHNFGxJltq4mixK00=
+github.com/containernetworking/cni v1.2.0-rc0.0.20240317203738-a448e71e9867/go.mod h1:Lt0TQcZQVDju64fYxUhDziTgXCDe3Olzi9I4zZJLWHg=
+github.com/containernetworking/plugins v1.4.2-0.20240312120516-c860b78de419 h1:mvCb6RL9/tZwgXnkYNQQk6JDtLgHdtFde8uVm7VKg04=
+github.com/containernetworking/plugins v1.4.2-0.20240312120516-c860b78de419/go.mod h1:n6FFGKcaY4o2o5msgu/UImtoC+fpQXM3076VHfHbj60=
+github.com/coreos/go-iptables v0.7.0 h1:XWM3V+MPRr5/q51NuWSgU0fqMad64Zyxs8ZUoMsamr8=
+github.com/coreos/go-iptables v0.7.0/go.mod h1:Qe8Bv2Xik5FyTXwgIbLAnv2sWSBmvWdFETJConOQ//Q=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
-github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
-github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
-github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
+github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
-github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
 github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
-github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/pprof v0.0.0-20230323073829-e72429f035bd h1:r8yyd+DJDmsUhGrRBxH5Pj7KeFK5l+Y3FsgT8keqKtk=
 github.com/google/pprof v0.0.0-20230323073829-e72429f035bd/go.mod h1:79YE0hCXdHag9sBkw2o+N/YnZtTkXi0UT9Nnixa5eYk=
-github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/k8snetworkplumbingwg/cni-log v0.0.0-20230801160229-b6e062c9e0f2 h1:KB8UPZQwLge4Abuk9tNmvzffdCJgqXSN341BX98QTHg=
 github.com/k8snetworkplumbingwg/cni-log v0.0.0-20230801160229-b6e062c9e0f2/go.mod h1:/x45AlZDoJVSSV4ECDb5TcHLzrVRDllsCMDzMrtHKwk=
-github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
-github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
-github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
-github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
 github.com/onsi/ginkgo/v2 v2.9.2 h1:BA2GMJOtfGAfagzYtrAlufIP0lq6QERkFmHLMLPwFSU=
 github.com/onsi/ginkgo/v2 v2.9.2/go.mod h1:WHcJJG2dIlcCqVfBAwUCrJxSPFb6v4azBwgxeMeDuts=
 github.com/onsi/gomega v1.27.5 h1:T/X6I0RNFw/kTqgfkZPcQ5KU6vCnWNBGdtrIx2dpGeQ=
 github.com/onsi/gomega v1.27.5/go.mod h1:PIQNjfQwkP3aQAH7lf7j87O/5FiNr+ZR8+ipb+qQlhg=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/safchain/ethtool v0.2.0 h1:dILxMBqDnQfX192cCAPjZr9v2IgVXeElHPy435Z/IdE=
-github.com/safchain/ethtool v0.2.0/go.mod h1:WkKB1DnNtvsMlDmQ50sgwowDJV/hGbJSOvJoEXs1AJQ=
-github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
+github.com/safchain/ethtool v0.3.0 h1:gimQJpsI6sc1yIqP/y8GYgiXn/NjgvpM0RNoWLVVmP0=
+github.com/safchain/ethtool v0.3.0/go.mod h1:SA9BwrgyAqNo7M+uaL6IYbxpm5wk3L7Mm6ocLW+CJUs=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0 h1:1zr/of2m5FGMsad5YfcqgdqdWrIhu+EBEJRhR1U7z/c=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.2 h1:+h33VjcLVPDHtOdpUCuF+7gSuG3yGIftsP1YvFihtJ8=
+github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/vishvananda/netlink v1.2.1-beta.2.0.20240221172127-ec7bcb248e94 h1:EO+D8nUD4bAhHHcJUSvH+8puZrDrcjc50tePSevGQrw=
 github.com/vishvananda/netlink v1.2.1-beta.2.0.20240221172127-ec7bcb248e94/go.mod h1:whJevzBpTrid75eZy99s3DqCmy05NfibNaF2Ol5Ox5A=
 github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
 github.com/vishvananda/netns v0.0.4 h1:Oeaw1EM2JMxD51g9uhtC0D7erkIjgmj8+JZc26m1YX8=
 github.com/vishvananda/netns v0.0.4/go.mod h1:SpkAiCQRtJ6TvvxPnOSyH3BMl6unz3xZlaprSwhNNJM=
-github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/mod v0.9.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
-golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
-golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
+golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
 golang.org/x/sys v0.0.0-20200217220822-9197077df867/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
-golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
-golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
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pkg/sriov/sriov.go

@@ -160,6 +160,11 @@ func (s *sriovManager) SetupVF(conf *sriovtypes.NetConf, podifName string, netns
 		return fmt.Errorf("error setting up interface in container namespace: %q", err)
 	}
 
+	// Copy the MTU value to a new variable
+	// and use it as a pointer
+	vfMTU := linkObj.Attrs().MTU
+	conf.MTU = &vfMTU
+
 	return nil
 }
 
@@ -314,6 +319,11 @@ func (s *sriovManager) ApplyVFConfig(conf *sriovtypes.NetConf) error {
 		}
 	}
 
+	// Copy the MTU value to a new variable
+	// and use it as a pointer
+	pfMtu := pfLink.Attrs().MTU
+	conf.MTU = &pfMtu
+
 	return nil
 }
 

pkg/sriov/sriov_test.go

@@ -181,8 +181,62 @@ var _ = Describe("Sriov", func() {
 			Expect(err).NotTo(HaveOccurred())
 			mocked.AssertExpectations(t)
 		})
-	})
+		It("Return MTU from PF", func() {
+			var targetNetNS ns.NetNS
+			targetNetNS, err := testutils.NewNS()
+			defer func() {
+				if targetNetNS != nil {
+					targetNetNS.Close()
+				}
+			}()
+			Expect(err).NotTo(HaveOccurred())
+			mocked := &mocks_utils.NetlinkManager{}
+			mockedPciUtils := &mocks.PciUtils{}
+			fakeMac, err := net.ParseMAC("6e:16:06:0e:b7:e9")
+			Expect(err).NotTo(HaveOccurred())
+
+			netconf.MAC = "e4:11:22:33:44:55"
+			expMac, err := net.ParseMAC(netconf.MAC)
+			Expect(err).NotTo(HaveOccurred())
+
+			fakeLink := &utils.FakeLink{LinkAttrs: netlink.LinkAttrs{
+				Index:        1000,
+				Name:         "dummylink",
+				HardwareAddr: fakeMac,
+				MTU:          1500,
+			}}
+
+			net1Link := &utils.FakeLink{LinkAttrs: netlink.LinkAttrs{
+				Index:        1000,
+				Name:         "net1",
+				HardwareAddr: expMac,
+				MTU:          1500,
+			}}
+
+			net2Link := &utils.FakeLink{LinkAttrs: netlink.LinkAttrs{
+				Index:        1000,
+				Name:         "temp_1000",
+				HardwareAddr: expMac,
+				MTU:          1500,
+			}}
 
+			mocked.On("LinkByName", "enp175s6").Return(fakeLink, nil)
+			mocked.On("LinkByName", "temp_1000").Return(net2Link, nil)
+			mocked.On("LinkByName", "net1").Return(net1Link, nil)
+			mocked.On("LinkSetDown", fakeLink).Return(nil)
+			mocked.On("LinkSetName", fakeLink, mock.Anything).Return(nil)
+			mocked.On("LinkSetName", net2Link, mock.Anything).Return(nil)
+			mocked.On("LinkSetHardwareAddr", net1Link, expMac).Return(nil)
+			mocked.On("LinkSetNsFd", net2Link, mock.AnythingOfType("int")).Return(nil)
+			mocked.On("LinkSetUp", net2Link).Return(nil)
+			mockedPciUtils.On("EnableArpAndNdiscNotify", mock.AnythingOfType("string")).Return(nil)
+			sm := sriovManager{nLink: mocked, utils: mockedPciUtils}
+			err = sm.SetupVF(netconf, podifName, targetNetNS)
+			Expect(err).NotTo(HaveOccurred())
+			Expect(*netconf.MTU).To(Equal(1500))
+			mocked.AssertExpectations(t)
+		})
+	})
 	Context("Checking ReleaseVF function", func() {
 		var (
 			podifName string
@@ -423,5 +477,30 @@ var _ = Describe("Sriov", func() {
 			mocked.AssertExpectations(t)
 		})
 	})
+	Context("Checking ApplyVFConfig function", func() {
+		var (
+			netconf *sriovtypes.NetConf
+		)
+
+		It("Return MTU from PF", func() {
+			mocked := &mocks_utils.NetlinkManager{}
+			mockedPciUtils := &mocks.PciUtils{}
+			vlan := 0
+			vlanProto := sriovtypes.Proto8021q
+			netconf = &sriovtypes.NetConf{Master: "ens1s0", Vlan: &vlan, VlanQoS: &vlan, VlanProto: &vlanProto}
+			fakeLink := &utils.FakeLink{LinkAttrs: netlink.LinkAttrs{
+				Index: 1000,
+				Name:  "ens1s0",
+				MTU:   9000,
+			}}
 
+			mocked.On("LinkByName", "ens1s0").Return(fakeLink, nil)
+			mocked.On("LinkSetVfVlanQosProto", fakeLink, mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil)
+			sm := sriovManager{nLink: mocked, utils: mockedPciUtils}
+			err := sm.ApplyVFConfig(netconf)
+			Expect(err).NotTo(HaveOccurred())
+			Expect(*netconf.MTU).To(Equal(9000))
+			mocked.AssertExpectations(t)
+		})
+	})
 })

pkg/types/types.go

@@ -47,6 +47,7 @@ type NetConf struct {
 	DPDKMode      bool    `json:"-"`
 	Master        string
 	MAC           string
+	MTU           *int    // interface MTU
 	Vlan          *int    `json:"vlan"`
 	VlanQoS       *int    `json:"vlanQoS"`
 	VlanProto     *string `json:"vlanProto"` // 802.1ad|802.1q